<!DOCTYPE html>
<html style="height: 100%" lang="zh" xmlns:th="http://www.thymeleaf.org">
<head>
<meta charset="utf-8">
</head>
<body style="height: 100%; margin: 0">

	<div id="main" style="height: 100%"></div>
<!-- 引入jquery -->
<script type="text/javascript" th:src="@{/ajax/libs/jquery/3.5.0/dist/jquery.min.js}"></script>
	<script type="text/javascript"
		th:src="@{/ajax/libs/echarts/5.0.1/dist/echarts.min.js}"></script>
	<script type="text/javascript">
	var chartDom = document.getElementById('main');
	var myChart = echarts.init(chartDom);
	var option;

	option = {
	    series: [{
	        name: 'hour',
	        type: 'gauge',
	        startAngle: 90,
	        endAngle: -270,
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	        splitNumber: 12,
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	                shadowOffsetX: 1,
	                shadowOffsetY: 2
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	        axisLabel: {
	            fontSize: 50,
	            distance: 25,
	            formatter: function (value) {
	                if (value === 0) {
	                    return '';
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	                return value;
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	        anchor: {
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	            showAbove: false,
	            offsetCenter: [0, '-35%'],
	            size: 120,
	            keepAspect: true,
	            itemStyle: {
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	        pointer: {
	            icon: 'path://M2.9,0.7L2.9,0.7c1.4,0,2.6,1.2,2.6,2.6v115c0,1.4-1.2,2.6-2.6,2.6l0,0c-1.4,0-2.6-1.2-2.6-2.6V3.3C0.3,1.9,1.4,0.7,2.9,0.7z',
	            width: 12,
	            length: '55%',
	            offsetCenter: [0, '8%'],
	            itemStyle: {
	                color: '#C0911F',
	                shadowColor: 'rgba(0, 0, 0, 0.3)',
	                shadowBlur: 8,
	                shadowOffsetX: 2,
	                shadowOffsetY: 4
	            }
	        },
	        detail: {
	            show: false
	        },
	        title: {
	            offsetCenter: [0, '30%']
	        },
	        data: [{
	            value: 0
	        }]
	    },
	    {
	        name: 'minute',
	        type: 'gauge',
	        startAngle: 90,
	        endAngle: -270,
	        min: 0,
	        max: 60,
	        axisLine: {
	            show: false
	        },
	        splitLine: {
	            show: false
	        },
	        axisTick: {
	            show: false
	        },
	        axisLabel: {
	            show: false
	        },
	        pointer: {
	            icon: 'path://M2.9,0.7L2.9,0.7c1.4,0,2.6,1.2,2.6,2.6v115c0,1.4-1.2,2.6-2.6,2.6l0,0c-1.4,0-2.6-1.2-2.6-2.6V3.3C0.3,1.9,1.4,0.7,2.9,0.7z',
	            width: 8,
	            length: '70%',
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	            itemStyle: {
	                color: '#C0911F',
	                shadowColor: 'rgba(0, 0, 0, 0.3)',
	                shadowBlur: 8,
	                shadowOffsetX: 2,
	                shadowOffsetY: 4
	            }
	        },
	        anchor: {
	            show: true,
	            size: 20,
	            showAbove: false,
	            itemStyle: {
	                borderWidth: 15,
	                borderColor: '#C0911F',
	                shadowColor: 'rgba(0, 0, 0, 0.3)',
	                shadowBlur: 8,
	                shadowOffsetX: 2,
	                shadowOffsetY: 4
	            }
	        },
	        detail: {
	            show: false
	        },
	        title: {
	            offsetCenter: ['0%', '-40%']
	        },
	        data: [{
	            value: 0
	        }]
	    },
	    {
	        name: 'second',
	        type: 'gauge',
	        startAngle: 90,
	        endAngle: -270,
	        min: 0,
	        max: 60,
	        animationEasingUpdate: 'bounceOut',
	        axisLine: {
	            show: false
	        },
	        splitLine: {
	            show: false
	        },
	        axisTick: {
	            show: false
	        },
	        axisLabel: {
	            show: false
	        },
	        pointer: {
	            icon: 'path://M2.9,0.7L2.9,0.7c1.4,0,2.6,1.2,2.6,2.6v115c0,1.4-1.2,2.6-2.6,2.6l0,0c-1.4,0-2.6-1.2-2.6-2.6V3.3C0.3,1.9,1.4,0.7,2.9,0.7z',
	            width: 4,
	            length: '85%',
	            offsetCenter: [0, '8%'],
	            itemStyle: {
	                color: '#C0911F',
	                shadowColor: 'rgba(0, 0, 0, 0.3)',
	                shadowBlur: 8,
	                shadowOffsetX: 2,
	                shadowOffsetY: 4
	            }
	        },
	        anchor: {
	            show: true,
	            size: 15,
	            showAbove: true,
	            itemStyle: {
	                color: '#C0911F',
	                shadowColor: 'rgba(0, 0, 0, 0.3)',
	                shadowBlur: 8,
	                shadowOffsetX: 2,
	                shadowOffsetY: 4
	            }
	        },
	        detail: {
	            show: false
	        },
	        title: {
	            offsetCenter: ['0%', '-40%']
	        },
	        data: [{
	            value: 0
	        }]
	    }]
	};

	var timeUpdatedStatus = {
	    second: false,
	    minute: false,
	    hour: false
	};

	function updateSeries(time, series, type) {
	    var isCritical = (Math.floor(time) === 0) || (type === 'second' && time === 1);
	    if (isCritical && timeUpdatedStatus[type] === true) {
	        timeUpdatedStatus[type] = false;
	        series.data[0].value = 0;
	        series.clockwise = true;
	        option.animationDurationUpdate = 0;
	        myChart.setOption(option, true);
	    }
	    series.data[0].value = time;
	    series.clockwise = true;
	    if (time === 0) {
	        timeUpdatedStatus[type] = true;
	        series.clockwise = false;
	    }
	}

	setInterval(function () {
	    var date = new Date();
	    var second = date.getSeconds();
	    var minute = date.getMinutes() + second / 60;
	    var hour = date.getHours() % 12 + minute / 60;

	    updateSeries(second, option.series[2], 'second');
	    updateSeries(minute, option.series[1], 'minute');
	    updateSeries(hour, option.series[0], 'hour');

	    option.animationDurationUpdate = 300;
	    myChart.setOption(option, true);
	    date = null;
	}, 1000);

	option && myChart.setOption(option);
	
	</script>
</body>
</html>